If a codon on mRNA is GGG, what is the anticodon on tRNA that pairs with it?

Study for the Biology 30 Genetics Test. Engage with a variety of question types, including multiple choice, flashcards, and detailed explanations. Ensure you're prepared for your exam day!

Multiple Choice

If a codon on mRNA is GGG, what is the anticodon on tRNA that pairs with it?

Explanation:
In translation, the tRNA anticodon must be complementary and antiparallel to the mRNA codon. In RNA, G pairs with C and A pairs with U. So for the codon GGG, the anticodon must provide C for each position, arranged antiparallel to the codon. That gives CCC (written 3' to 5'). Other sequences wouldn’t form proper base pairing with GGG (for example, UUU pairs with AAA).

In translation, the tRNA anticodon must be complementary and antiparallel to the mRNA codon. In RNA, G pairs with C and A pairs with U. So for the codon GGG, the anticodon must provide C for each position, arranged antiparallel to the codon. That gives CCC (written 3' to 5'). Other sequences wouldn’t form proper base pairing with GGG (for example, UUU pairs with AAA).

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